Orbit Fit and Astrometric record for 14ME70

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 14ME70    
# Created Sat Dec 16 02:38:03 2017
# Orbit generated from Bernstein formalism
# Fitting   22 observations of   22
# Arc:   2.18y
# First observation: 2012/06/16
#  Last observation: 2014/08/22
Preliminary a, adot, b, bdot, g, gdot:
   0.000017   0.030808   0.000002   0.002135   0.027943   0.000000
# Chi-squared of fit:    11.54 DOF:   38 RMS:  0.13
# Min/Max residuals:    -0.24    0.29
# Exact a, adot, b, bdot, g, gdot:
  1.640340E-05  3.078060E-02 -9.635466E-09  2.137416E-03  2.790261E-02  2.276526E-03
# Covariance matrix:
  4.8627E-13 -1.1222E-12  1.2206E-14 -6.7716E-14 -7.5139E-13 -1.4179E-11
 -1.1222E-12  1.1567E-11 -1.3274E-13  8.0874E-13  1.0692E-11  1.6710E-10
  1.2206E-14 -1.3274E-13  3.8545E-13 -2.0204E-13 -1.1777E-13 -1.9697E-12
 -6.7716E-14  8.0874E-13 -2.0204E-13  1.7416E-13  7.4636E-13  1.1849E-11
 -7.5139E-13  1.0692E-11 -1.1777E-13  7.4636E-13  1.0491E-11  1.5340E-10
 -1.4179E-11  1.6710E-10 -1.9697E-12  1.1849E-11  1.5340E-10  2.4526E-09
#      lat0       lon0       xBary       yBary       zBary        JD0
   -6.958824  -58.420207    0.600035   -0.099694   -0.816468  2456095.033996
# Heliocentric elements and errors
Epoch:              2456090.5000  =  2012/06/12
Mean Anomaly:           18.46344 +/-     0.450
Argument of Peri:      274.23128 +/-     0.639
Long of Asc Node:        1.10843 +/-     0.005
Inclination:             7.80616 +/-     0.000
Eccentricity:         0.14989890 +/-    0.0007
Semi-Major Axis:     42.59451425 +/-    0.0066
Time of Perihelion: 2450882.8839 +/-     126.9
Perihelion:          36.20964357 +/-    0.0308
Aphelion:            48.97938493 +/-    0.0312
Period (y)              277.9961 +/-      0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           18.55258115 +/-    0.0022
Ecliptic Y          -31.31935875 +/-    0.0035
Ecliptic Z           -4.34204634 +/-    0.0005
Ecliptic XDOT         0.00269716 +/-    0.0000
Ecliptic YDOT         0.00137437 +/-    0.0000
Ecliptic ZDOT         0.00018123 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   36.65997635 +/-    0.0032
Geocenter to KBO     35.83893885 +/-    0.0042
# Hcoef:  6.49

The following table shows the complete astrometric record for 14ME70. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (14ME70) followed by the observatory code and reference code for the source of the astrometry.

2012 06  16.53323  20 22 09.901  -26 35 07.89  22.2w 14ME70    F51  C~1vXb      
2012 06  16.56109  20 22 09.751  -26 35 08.94  22.1w 14ME70    F51  C~1vXb      
2012 06  16.57499  20 22 09.703  -26 35 08.93  22.1w 14ME70    F51  C~1vXb      
2013 08  02.39594  20 25 30.301  -26 17 53.13  22.1w 14ME70    F51  C~1vXb      
2013 08  02.41029  20 25 30.217  -26 17 53.39  22.4w 14ME70    F51  C~1vXb      
2013 08  02.42394  20 25 30.139  -26 17 53.55  22.3w 14ME70    F51  C~1vXb      
2013 08  02.43760  20 25 30.063  -26 17 53.95  22.3w 14ME70    F51  C~1vXb      
2014 06  30.48631  20 36 01.300  -25 33 43.53  22.3w 14ME70    F51  C~1vXb      
2014 06  30.49798  20 36 01.230  -25 33 43.79  22.3w 14ME70    F51  C~1vXb      
2014 06  30.50986  20 36 01.181  -25 33 44.29  22.0w 14ME70    F51  C~1vXb      
2014 07  27.42620  20 33 33.955  -25 42 54.39  22.3w 14ME70    F51  C~1vXb      
2014 07  27.43813  20 33 33.860  -25 42 54.52  22.3w 14ME70    F51  C~1vXb      
2014 07  27.45003  20 33 33.794  -25 42 54.96  22.0w 14ME70    F51  C~1vXb      
2014 07  27.46193  20 33 33.753  -25 42 54.71  22.2w 14ME70    F51  C~1vXb      
2014 07  29.41230  20 33 22.454  -25 43 30.89  22.2w 14ME70    F51  C~1vXb      
2014 07  29.42355  20 33 22.394  -25 43 31.14  22.0w 14ME70    F51  C~1vXb      
2014 07  29.43480  20 33 22.334  -25 43 31.36  22.0w 14ME70    F51  C~1vXb      
2014 07  29.44605  20 33 22.262  -25 43 31.69  22.0w 14ME70    F51  C~1vXb      
2014 08  22.38160  20 31 08.660  -25 49 31.48  22.2w 14ME70    F51  C~1vXb      
2014 08  22.39307  20 31 08.601  -25 49 31.87  22.0w 14ME70    F51  C~1vXb      
2014 08  22.40454  20 31 08.532  -25 49 31.85  22.3w 14ME70    F51  C~1vXb      
2014 08  22.41599  20 31 08.468  -25 49 31.87  22.3w 14ME70    F51  C~1vXb      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

  1   0.0000      0.00     0.21       0.00     0.25
  2   0.0001     -2.20    -0.24      -0.55    -0.15
  3   0.0001     -2.83     0.00      -0.39     0.09
  4   1.1276   2859.92    -0.02     370.06    -0.06
  5   1.1277   2858.77    -0.02     370.08    -0.09
  6   1.1277   2857.71     0.03     370.17    -0.04
  7   1.1277   2856.62     0.05     370.03    -0.23
  8   2.0368  11776.14     0.06     817.13     0.10
  9   2.0369  11775.15    -0.09     817.13     0.13
 10   2.0369  11774.38    -0.02     816.82    -0.15
 11   2.1106   9703.30     0.09     795.47    -0.09
 12   2.1106   9702.03    -0.21     795.67     0.09
 13   2.1107   9701.05    -0.21     795.47    -0.14
 14   2.1107   9700.58     0.29     795.85     0.22
 15   2.1160   9543.36    -0.02     799.64     0.15
 16   2.1161   9542.51     0.05     799.60     0.09
 17   2.1161   9541.67     0.13     799.60     0.05
 18   2.1161   9540.64     0.02     799.52    -0.05
 19   2.1817   7700.33     0.05     905.65     0.03
 20   2.1817   7699.46     0.00     905.48    -0.22
 21   2.1817   7698.56    -0.07     905.73    -0.05
 22   2.1817   7697.71    -0.09     905.92     0.06

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

14ME70    quality flag:3

Type:      CLASSICAL CLASSICAL CLASSICAL

axisobj        42.542    42.566    42.518
ecceobj         0.149     0.151     0.148
incobj          7.808     7.807     7.808
qmin           35.720    35.662    35.723
qmax           49.959    50.062    50.036
amean          42.692    42.690    42.687
amin           42.301    42.315    42.295
amax           43.101    43.112    43.111
emean           0.126     0.131     0.126
emin            0.096     0.100     0.094
emax            0.160     0.161     0.161
imean           7.554     7.692     7.382
imin            5.798     5.903     5.546
imax            9.148     9.157     9.164
excite_mean     0.182     0.187     0.180
fracstop        1.000     1.000     1.000
cjmean          3.045     3.043     3.046

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       184.0     182.8     182.4
kozaiamp        180.0     180.0     180.0